I recently removed the last Exchange 2003 server from our network. We were in co-existence mode for a while until all the mailboxes, PF's, recipient policies, etc. migrated over. Seemingly after uninstalling Exchange 2003 the send connector in Exch2010 disappeared. This was corrected and now all the transport rules that were working are no longer working.
I can't seem to figure out what happened. Tried created a new transport rule but that does not work. Everything else appears to be working normally. Any help would be appreciated as this is affecting my client's ability to manage emails for various projects.